细颗粒轰击形成的微观粗糙表面的抗菌效果。
Antibacterial effect on microscale rough surface formed by fine particle bombarding.
作者信息
Nishitani Tomoko, Masuda Kyosuke, Mimura Soma, Hirokawa Takahiko, Ishiguro Hitoshi, Kumagai Masao, Ito Takeshi
机构信息
Surf Technology Co., Ltd, 4-1-83 Onodai, Minami-ku, Sagamihara, Kanagawa, 252-0331, Japan.
Graduate School of Science and Engineering, Kansai University, 3-3-35, Yamate-cho, Suita, Osaka, 564-8680, Japan.
出版信息
AMB Express. 2022 Jan 31;12(1):9. doi: 10.1186/s13568-022-01351-8.
Fine particle bombarding (FPB) is typically utilized to modify metal surfaces by bombarding them with fine particles at high-speed. The diameters of the particles range from several to tens of micrometers. FPB forms fine microscale concavities and convexities on a surface. As FPB-treated surfaces are widely used in the food industry, the influence of bacteria on their surface must be considered. In this study, we examined the antibacterial activity of microscale rough surfaces formed by FPB. We applied FPB to a stainless-steel surface and evaluated the antibacterial effect of FPB-treated surfaces based on JIS Z 2801 (a modified test method from ISO 22196:2007). Our results indicated that the FPB-treated surfaces (FPB-1 (avg. pitch: 0.72 µm) and FPB-2 (avg. pitch: 3.56 µm)) exhibited antibacterial activity both against Escherichia coli and Staphylococcus aureus.
细颗粒轰击（FPB）通常用于通过高速用细颗粒轰击金属表面来对其进行改性。颗粒直径范围从几微米到几十微米。FPB在表面形成微小的微观凹坑和凸起。由于经FPB处理的表面在食品工业中广泛使用，必须考虑细菌对其表面的影响。在本研究中，我们研究了由FPB形成的微观粗糙表面的抗菌活性。我们将FPB应用于不锈钢表面，并根据JIS Z 2801（ISO 22196:2007的改进测试方法）评估经FPB处理表面的抗菌效果。我们的结果表明，经FPB处理的表面（FPB-1（平均间距：0.72 µm）和FPB-2（平均间距：3.56 µm））对大肠杆菌和金黄色葡萄球菌均表现出抗菌活性。
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